**''[CA:''** ''[[color|<Color>]],[[newcolor|<NewColor>]]'' **'',[[xy|<X>,<Y>]],[[wh|<W>,<H>]]]''**\\
**''[CA:''** ''[[color|<Color>]],[[newcolor|<NewColor>]]'' **'',''** ''<X1>,<Y1>,<W1>,<H1>,<X2>,<Y2>,<W2>,<H2>, ...'' **'']''**\\


Color in Area

All pixels specified by <Color> are given the value of <NewColor> in a single or several areas of the picture.. 

The colour transformation takes place in a display buffer that has the same properties as the screen on which the screensaver runs.  If the screen colour depth is set to a low level (4, 8 or 16 bit mode) many pictures in the screensaver will appear quite different than at higher colour depth setting.  Because of this, it is sensible to substitute old (unsupported) colours - use rather the coordinate form of the ''<Color>'' parameter instead.